Centrifugal fan and electronic device using same
AssigneesFurui Precise Component (Kunshan) Co., Ltd., Foxconn Technology Co., Ltd.
InventorsChing-Bai Hwang, Zhi-Hui Zhao, Ran Lin
Life of this patent
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Abstract
A centrifugal fan includes a housing and an impeller. The housing includes a base plate, a side plate extending upwardly from a periphery of the base plate and a concave portion depressed downwardly from a central portion of the base plate. The concave portion includes a bottom wall spaced from the base plate and a side wall interconnects with the base plate. An air inlet is defined in the bottom wall. The impeller includes a hub and a plurality of blades extending radially from the hub. The impeller is rotatably arranged on the bottom wall of the concave portion. A bottom face of each of the blades extends into the concave portion.
Claims12
A centrifugal fan comprising:
- a housing comprising a base plate, a side plate extending upwardly from a periphery of the base plate and a concave portion depressed downwardly from a central portion of the base plate, the concave portion comprising a bottom wall spaced from the base plate and a side wall interconnecting with the base plate, an air inlet defined in the bottom wall;
- and
- an impeller comprising a hub and a plurality of blades extending radially from the hub, the impeller being rotatably arranged on the bottom wall of the concave portion, a bottom face of each of the blades extending into the concave portion.
An electronic device comprising:
- a bottom cover;
- a top cover opposite to the bottom cover;
- a centrifugal fan received in between the two covers, the centrifugal fan comprising:
- a housing comprising a base plate, a side plate extending upwardly from a periphery of the base plate and a concave portion depressed downwardly from a central portion of the base plate, the concave portion comprising a bottom wall spaced from the base plate and a side wall interconnecting with the base plate, an air inlet defined in the bottom wall;
- an impeller comprising a hub and a plurality of blades extending radially from the hub, the impeller being rotatably arranged on bottom wall of the concave portion, a bottom face of each of the blades being lower than the base plate.
Dependencies are inferred from the claim text.